.divCol {
    width: 454px;
    height: 454px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.divRow {
    width: 454px;
    height: 250px;
    flex-direction: row;
    justify-content: center;
    align-items: center;
}

.pvDuration {
    margin-top:10px;
    width: 50px;
    height: 250px;
    focus-font-size:40px;
    font-size: 30px;
}

.txt {
    width: 50px;
    height: 36px;
    text-align: center;
}

.img {
    width: 208px;
    height: 208px;
}

.pvRhythm {
    width: 80px;
    height: 250px;
}

.btn2 {
    width: 200px;
    height: 50px;
    font-size: 38px;
    background-color: #333333;
    border-color: yellow;
}
